Vapor-burner.



No. 861,066. v PATENTBD JULY 23, 1907.

A. -I-I. WAITE.

VAPOR BURNER.'

APPLmATroN FILED oom. 190s.

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PATENTED JULY 23, 1907.

A. H. WAITE. VAPOR BURNER.

APPLLOATION FILED ooms. 1906.

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AZRO H. WAITE, OF EL PASO, ILLINOIS.

VAPOR-BURNER.

Specification of Letters Patent.

Patented July 23, 1907.

' Application led October 25,1905. Serial No. 284,313.

To all whom it may concern:

Be it known that I, AzRo II. WAITE, a citizen of the United States, and a resident of El Iaso, in the county of Woodford and State of Illinois, have invented a4 new and Improved Vapor-Burner, of which the following is a full, clear, and exact description.

The invention relates to burners using gasolene or like liquids as fuel, and its object is to provide a new and improved vapor burner arranged to quickly start the generation of the vapor without creating undesirable smoke, and to prevent the formation and escape of gas into the room after the burner is turned out, thus rendering the burner both smokeless and odorless.

'lhe invention consists of novel features and parts and combinations of the same which will be more fully described hereinafter and then pointed out -in the claims.

A practical embodiment of the invention is represented in the accompanying drawings forming a part of this specification, in which similar characters of reference indicate corresponding parts in all the views'.

Figure 1 is a side elevation of the improvement; Fig. 2 is an enlarged sectional side elevation of the burner proper; Fig. 3 is a reduced plan View of the same, Fig. 4 is an enlarged sectional side elevation of the supply tank and its outlets; and Fig. 5 is asectional plan view of the same, on the line 5-5 of Fig. 4.

In the detail description use is made of the terms evaporating burner and generating burner, the term evaporating burner signifying a burner in which the inflammable liquid drips onto a screen and is subjected to the action of air to evaporate the liquid and form with the air an inflammable gaseous mixture carried to the burner, no direct heat being used for vaporization. The term generating burner is used to designate a burner in which the vapor to be fed to the burner is formed by forcing gasolene or like liquid through a heated channel to vaporize the liquid previous to its entrace into the burner.

The improved vapor burner consists essentially of an evaporating burner A and a generating burner B arranged centrally relative to the evaporating burner A, both burners A and B receiving their supply of fuel from an overhead tank G, illustrated in Figs. l, 4 and 5. The generating burner B supplies gas to auxiliary gas burners D, which may be used for any desired purpose.

The evaporating burner A consists of an annular i closed mixing chamber A (see Fig. 2) provided on the tubular screen closed at the top and opening at its lower end into the gas supply pipe E. Into the enlarged end F/ opens the upper end of a hot air supply pipe F connected, at its lower end, with a hot air collecting drum A3 surrounding the upper portion of the mixing chamber A, and closed at the top and open at the bottom for the admission of air. rating burner A is in use, air passes into the drum A3, and from the same, by way of the pipe F, into the enlarged end E/ of the gas supply pipe E, so that the gasolene.which passes into the upper enlarged end E comes in Contact with the hot air and is thus vaporized and mixed with the air, and the mixture passes through the meshes of the evaporator E2 into the latter, and finally into the pipe E and to the mixing chamber A/ in which the vapor is mixed. The inflammable mixture thus produced is formed at the screen A2, and the heat generated is utilized for heating, cooking vessels and the like, and also to heat the generating burner B surrounded by the iiame produced by the evaporating burner A.

In order to control the liquid fuel passing into the upper end E of the gas supply pipe E from the tank C, the following arrangement is made: The top of the upper end E of the pipe E is provided with a springpressed socket Gr having a shell of glass or other transparent material and the said socket is engaged .by a nozzle II containing a drip-valve I to allow the liquid fuel to flow in regulated quantities through the nozzle I'I and socket G into the upper end Ef, to be vaporized, as previously explained. The nozzle II is connected with the bottom of a chamber O having its top connected by a valve opening O2 with a chamber C2 connected at the bottom and top by openings Cf and C5 with the interior of the tank O, the said chambers C3 and C forming integral parts of the tank C, and the Chamb er C being provided with an air vent in the form of a pipe CG extending to the top of the chamber C. Within the chamber O is arranged a valve J for controlling the valve openings C2 and the valve .l is held on a float J/ adapted to rise and fall in the chamber C with the liquid passing into the chamber C by way of the valve opening C2, chamber O3 and opening O4 from the tank O. Thus, when the liquid rises in the chamber O/ the float .If rises correspondingly and the -valve .I cuts off the supply of liquid fuel, thus insuring When the evapothe generated gas to be burned outside of the cap B2. The bottom chamber B4 is somewhat larger than the top chamber B3, which latter opens into the bottom chamber B4 and into the top chamber B3 opens the upper end of the supply pipe B5 extending centrally through the lower chamber B4. Into the lower end of the supply pipe B5 discharges a jet Bi controlled by a valve B7 arranged in the pipe B8 connected with an annular chamber B9 formed in the base B Into the annular chamber B9 opens a stand pipe K connected with the bottom of the overhead tank C, so that gasolene or like liquid fuel can flow by gravity through the stand pipe K into the annular chamber B9, to be vaporized therein by the heat radiating from the evaporating burner A, as previously explained. The gas generated in the chamber B9 passes by way of the pipe BS and jet B6 into the supply pipe B5, into which also enters atmospheric air from the bottom of the evaporating burner, so that a combustible mixture is produced which passes into the chambers B3 and B4 through the perforations thereof, to be burned on the outside oi the cap B2. The valve B7 is provided with a suitable handle B10 under the control ot" the operator for regulating the amount oi vapor passing through the' jet opening BV. A branch pipe L extends from the chamber BJ to the auxiliary burners D to supply the same with gas from the said chamber B9.

In using the vapor burner, the evaporating burner A is first ignited, the valve B7 being closed, and the amount oi fuel to be supplied to the evaporating burner being regulated by the drip valve I. After the evaporating burner is in use for a While, the generating burner is heated to such an extent that it quickly generates gas within the chamber B9, so that when the valve B7 'is opened, the gas immediately passes under pressure out of the jet opening B, to mix with the air to produce a combustible mixture, passing by way oi the supply pipe B5 into the chambers B3 and B4 of the cap B2, vto be burned at the outside thereof as soon as ignited by the surrounding iiame of the evaporating burner A. As soon as the generating burner B is started the evaporating burner A may be shut ofi .by the operator closing the drip valve I. Ii desired, however, both burners A and B may be used simultaneously.

It is well known that in starting an ordinary generating burner, considerable smoke is produced; that is, until suflicient heat is obtained to iorm a proper combustible mixture; but as by my arrangement the generating burner B is highly heated before the valve B7 is opened, it is evident that no smoke whatever can ensue, as the proper iniiammable mixture immediately passes through the pertorations of the chambers B3 and B4 to be burned on the outside of the cap B2.

A serious fault ot evaporating burners is that after the supply oi the liquid fuel is shut ofi, a further generation oi gas still takes place, and this gas passes into the room and consequently an undesirable odor pervades the room. By my arrangement the evaporating burner A is preierably shut oli soon after the generating burner B is started, and hence any gas that is generated in the evaporating burner is burned by the flame ot the generating burner B, and consequently no gas from the evaporating burner A escapes into the room.

From the foregoing it will be seen that the evaporating burner A overcomes a fault in the generating burner B, and the latter recties the fault oi the evaporating burner A, and consequently the burner is rendered completely smokeless and odorless.

Having thus described my invention, I claim as new and desire to secure by Letters Patent,-

1. A vapor burner, comprising an evaporating burner having a tubular open ended body and an annular mixing chamber surrounding the body and provided with a perforated top, and a generating burner having an annular' marginal generating chamber and a centrally arranged burner cap projecting above the chamber, the generating burner being seated upon one end of the body otthe evaporating burner with its generating chamber' adjacent to and rising above the perforated top of the mixing chamber of the evaporating burner.

2. A Vapor' burner, comprising an evaporating burner having a tubular and open ended body and an annular mixing Ychamber surrounding the body and having its top covered by a screen, and a generating burner provided with a base having an annular marginal generating chamber rising therefrom and with a centrally arranged burner cap projecting above the chamber, the generatingr burner having its base seated on one end of the body oi' the evaporating burner with a portion thereof extending into said body, the generating chamber thereof being adjacent to and projecting above the screen covered top of the mixing chamber ot the evaporating burner.

In a vapor burner, an vopen ended shell having an annular mixing chamber surrounding it, said mixing chamber having its top covered by a screen, means for admitting vcarbureted air into the mixing chamber', a burner having an annular marginal generating chamber and a centrally arranged burner cap, said burner being seated on the upper end of the shell over the opening thereof, and means within the shell for admitting the gas generated in the gener-ae ing chamber of the bur'ner to said burner'.

4. In a vapor burner, an open ended shell having an annular mixing chamber surrounding it, said chamber having its top covered by a screen, an evaporator connected with said chamber, a burner having an annular marginal generating chamber, a centrally arranged burner cap and a central supply pipe, the said burner being seated upon the shell over the opening thereof with its supply pipe extending into the shell, and a pipe within the shell and leading from the gener-ating chamber to a point below the supply pipe of the burner and provided with a discharge jet.

5. A vapor burner, comprising an evaporating burner having an open ended tubular body and an annular mixing chamber surrounding the body, said mixing chamber being provided with a perforated top and with the lower portion of which the evaporator of the said burner' is connected, and a generating burner comprising a base seated upon ripper' end of the trrbular body of the evaporating burner and having an annular' chamber', superimposed perforated chambers, a central supply pipe extending -from the upper chamber through the lower one into the body of the evaporating burner, a pipe leading from the said annular chamber down into the body of the evaporating burner and provided with a discharge jet below the supply pipe, and a valve for said jet, said valve having its handle below the lower end of the body of the evaporating burner.

ln testimony whereof I have signed my name to this specification in the presence of two subscribing witnesses.

Witnesses FRANK B. S'rr'r'r, LEWIS K. EvANs. 

